Chillicothe Post Office

Post office

401 S Washington Street, Chillicothe, MO 64601

Hours are not published. Call before you go.

Hours and addresses come from the State Department listing, updated November 2, 2026.

Book at USPS Directions Facilities in Chillicothe Facilities in Missouri

Chillicothe Post Office accepts new U.S. passport applications in person in Chillicothe, MO. First-time and child visits are booked on the USPS scheduler. Search ZIP 64601. How to apply · How to renew